Copernicus studies of interstellar material in the Perseus II complex. III - The line of sight to Zeta Persei

Details Copernicus studies of interstellar material in the Perseus II complex. III - The line of sight to Zeta Persei Copernicus studies of interstellar material in the Perseus II complex. III - The line of sight to Zeta Persei

Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...216..724s&link_type=abstract

Astrophysical Journal, Part 1, vol. 216, Sept. 15, 1977, p. 724-737.

Astronomy and Astrophysics

Astrophysics

130

Abundance, Astronomical Spectroscopy, B Stars, Interstellar Matter, Oao 3, Density (Mass/Volume), Interstellar Extinction, Interstellar Gas, Kinematics, Molecular Gases, O Stars, Radiant Flux Density, Silicon, Star Clusters, Tables (Data), Ultraviolet Spectra

Scientific paper

Ultraviolet spectrophotometric data obtained with Copernicus are used to analyze the distribution, composition, density, temperature, and kinematics of the interstellar material along the line of sight to Zeta Persei. The far-UV extinction curve for the star is evaluated along with the kinematics of the interstellar gas, observations of atomic and molecular hydrogen, curves of growth for neutral and ionized species, atomic abundances and depletions, ionization equilibria, and observations of CO and OH lines. The results show that there are apparently three clouds along the line of sight to Zeta Persei: a main cloud at approximately +13 km/s which contains most of the material and forms all the neutral and molecular lines as well as most of the ionic lines, a second component at +22 km/s which must contribute to the strong UV lines of most ions, and a third component at roughly +2 km/s which gives rise to a strong Si III line at 1206 A. It is also found that the UV extinction curve has a somewhat steep far-UV rise, indicating the presence of a substantial number of small grains, and that about 30% of the hydrogen nuclei over the entire line of sight are in molecular form.

Affiliated with

Also associated with

No associations

Rating

Copernicus studies of interstellar material in the Perseus II complex. III - The line of sight to Zeta Persei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Copernicus studies of interstellar material in the Perseus II complex. III - The line of sight to Zeta Persei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copernicus studies of interstellar material in the Perseus II complex. III - The line of sight to Zeta Persei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1093032